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Direct Blue 274 Dyes

Product info Type: Direct Dyes, Direct Blue Dyes Product Name: Direct Blue 274,Blend Blue D-3GL 100% CAS No.:74685-92-0 EINECS: 414-121-3 Molecular Formula:cC54H29Ci2N9O22S66Na Product Description
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Product Introduction

Product info


Type: Direct Dyes, Direct Blue Dyes
Product Name: Direct Blue 274,Blend Blue D-3GL 100%
CAS No.:74685-92-0
EINECS: 414-121-3

Molecular Formula:cC54H29Ci2N9O22S66Na


Product Description


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Chemical Properities

Blue powder. Water solubility is good, its aqueous solution is lake blue. In concentrated sulfuric acid, it is yellowish green, and after dilution, it turns greenish blue, and there is blue-green precipitate. In concentrated nitric acid only partially dissolved in yellowish green; Insoluble in concentrated alkali; When dissolved in concentrated ammonia, it is lake blue. Slightly sensitive to hard water.


Application

Mainly used for cotton, viscose fiber dyeing, also used for silk, leather, paper pulp coloring; Transparent blue 2B is mainly used for all kinds of oil coloring. Can also be used for all kinds of plastic, resin coloring. ; Mainly used for dyeing and printing cotton, viscose, silk and other fabrics.Direct Blend Blue D-3GL is suitable for one-bath dyeing of polyester-cotton, polyester-viscose blended fibers, and also for high-temperature jet dyeing of polyester-viscose medium and long fibers to make wool-like fabrics more "wool-like". Especially suitable for one-bath one-step dyeing Chemicalbook color. This product is a blue variety with bright green light. It is the main dye for dyeing navy blue. It is also one of the three primary colors. It is often blended directly with yellow D-3RNL and red jade D-BLL to dye navy, gray, camel, etc. Color. Used for one-bath dyeing of polyester/cotton, polyester/viscose blended fibers and fabrics.


Manufacturing Method

Copper phthalocyanine blue (CuPC) was used as raw material for chlorosulfonation, diluted with ice water, precipitated with copper phthalocyanine sulfonyl chloride, filtered, neutralized with ammonia, and heated for deamination. After salting out, filtration and drying.


With amino C acid, p-clixidin (2-methoxy-5-methylaniline), bisJ acid (5,5'-dihydroxy-7,7'-disulfonic acid-2,2'-di Benzene (Chemicalbook amine) is used as the raw material. Firstly, the amino C acid is diazotized, coupled with p-clixidin, and then diazotized for the second time, coupled with bis-J acid, and finally complexed with copper sulfate to obtain the product.


FAQ:

1.Are you a trade company or a manufacturer?

We are a manufacturer with more than 15 years' experience.


2.Do you have certificates? And what certificates are there?

Yes, We have OEKO-TEX, BLUESIGN certificates.


3.Can you provide free samples for test?

Yes, of course.We can provide 20g free samples for each item.



 


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